258651848

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 628561920

約数和(自身を除く): 369910072

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 73, 91, 104, 124, 146, 157, 182, 217, 248, 292, 314, 364, 403, 434, 511, 584, 628, 728, 806, 868, 949, 1022, 1099, 1256, 1612, 1736, 1898, 2041, 2044, 2198, 2263, 2821, 3224, 3796, 4082, 4088, 4396, 4526, 4867, 5642, 6643, 7592, 8164, 8792, 9052, 9734, 11284, 11461, 13286, 14287, 15841, 16328, 18104, 19468, 22568, 22922, 26572, 28574, 29419, 31682, 34069, 38936, 45844, 53144, 57148, 58838, 63271, 63364, 68138, 80227, 91688, 114296, 117676, 126542, 126728, 136276, 148993, 160454, 205933, 235352, 253084, 272552, 297986, 320908, 355291, 411866, 442897, 506168, 595972, 641816, 710582, 823732, 885794, 1042951, 1191944, 1421164, 1647464, 1771588, 2085902, 2487037, 2842328, 3543176, 4171804, 4618783, 4974074, 8343608, 9237566, 9948148, 18475132, 19896296, 32331481, 36950264, 64662962, 129325924, 258651848]

約数ペア:

[(1, 258651848), (2, 129325924), (4, 64662962), (7, 36950264), (8, 32331481), (13, 19896296), (14, 18475132), (26, 9948148), (28, 9237566), (31, 8343608), (52, 4974074), (56, 4618783), (62, 4171804), (73, 3543176), (91, 2842328), (104, 2487037), (124, 2085902), (146, 1771588), (157, 1647464), (182, 1421164), (217, 1191944), (248, 1042951), (292, 885794), (314, 823732), (364, 710582), (403, 641816), (434, 595972), (511, 506168), (584, 442897), (628, 411866), (728, 355291), (806, 320908), (868, 297986), (949, 272552), (1022, 253084), (1099, 235352), (1256, 205933), (1612, 160454), (1736, 148993), (1898, 136276), (2041, 126728), (2044, 126542), (2198, 117676), (2263, 114296), (2821, 91688), (3224, 80227), (3796, 68138), (4082, 63364), (4088, 63271), (4396, 58838), (4526, 57148), (4867, 53144), (5642, 45844), (6643, 38936), (7592, 34069), (8164, 31682), (8792, 29419), (9052, 28574), (9734, 26572), (11284, 22922), (11461, 22568), (13286, 19468), (14287, 18104), (15841, 16328)]